Page 2 - Fig. 1—Dimensional Drawing; UNIT SIZE
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PROCEDURE Electrostatic discharge can affect electronic components.Take precautions during furnace installation and servicing toprotect the furnace electronic control. Precautions will pre-vent electrostatic discharges from personnel and hand toolswhich are ...
Page 3 - not; Fig. 2—Clearances to Combustibles; REV; MINIMUM INCHES CLEARANCE TO COMBUSTIBLE CONSTRUCTION; Clearance arrows do not change with furnace orientation.
in alcoves, attics, crawlspaces, basements, closets, or utility rooms.The design of this furnace line is not A.G.A./C.G.A. certified for installation in mobile homes, recreation vehicles, or outdoors.Before installing the furnace, refer to the current edition of theNFGC and the NFPA 90B. Canadian in...
Page 4 - Remove all shipping brackets and materials before oper-; Step 1—Location; GENERAL; Step 2—Air for Combustion and Ventilation; BTUH
Improper installation, adjustment, alteration, service, mainte-nance, or use can cause carbon monoxide poisoning, explo-sion, fire, electrical shock, or other conditions which maycause personal injury, loss of life, or property damage.Consult a qualified installer, service agency, local gas sup-plie...
Page 5 - CONFINED
installed in that space. A confined space MUST have provisionsfor supplying air for combustion, ventilation, and dilution of fluegases using 1 of the following methods. (See Fig. 3 and Table 2.) NOTE: In determining free area of an opening, the blocking effect of louvers, grilles, and screens must b...
Page 6 - Table 2—Free Area Of Combustion Air Opening
KGASB0201ALL is used. Manufacturer’s accessory floor base isnot required when this furnace is installed on manufacturer’s CoilAssembly Part No. CD5 or CK5, or Coil Box Part No. KCAKC isused. 1. Determine application being installed from Table 3.2. Construct hole in floor per dimensions specified in ...
Page 7 - coil casing when used) should be installed as shown in Fig. 6.; Step 4—Horizontal Attic Installation; Table 4 before connecting return-air duct to furnace.; Step 5—Horizontal Crawlspace Installation; Combustible Floor
2. When completed, downflow subbase, plenum, and furnace (or coil casing when used) should be installed as shown in Fig. 6. Step 4—Horizontal Attic Installation Do not install furnace on its back; safety control operationwill be adversely affected. Never connect return-air ducts tothe sides or back ...
Page 8 - MIN
→ Fig. 9—Horizontal Crawlspace Installation on Hanger Rods A96633 NOTES: ANGLE IRON OR EQUIVALENT ROD LOCATION USING DIMPLE LOCATORS (SEE DIMENSIONAL DWG FOR LOCATIONS) 3 ⁄ 8 -IN. ROD 1. A 1 In. clearance minimum between top of furnace and combustible material. 2. The entire length of furnace must b...
Page 10 - Step 8—Electrical Connections; Proper polarity must be maintained for 115-v wiring. If; Step 9—VENTING; Fig. 13—Typical Gas Pipe Arrangement
Step 8—Electrical Connections 115-V WIRINGRefer to unit rating plate or Table 6 for equipment electricalrequirements. The control system requires an earth ground forproper operation. Do not connect aluminum wire between disconnect switchand furnace. Use only copper wire. Make all electrical connecti...
Page 11 - Table 6—Electrical Data; Table 7—Setup Switch Description
This furnace can be installed with either single-stage heating or2-stage heating thermostat.For single-stage thermostats, connect thermostat W to W/W1 atfurnace control terminal block. (See Fig. 15.) For single-stagethermostats the control determines, based on length of previousheating on and off cy...
Page 12 - Adaptive Heating Mode—Single-Stage Thermostat and; Table 8—Blower Off Delay Setup Switch; DESIRED HEATING; Fig. 17—Setup Switches on Control Center
his furnace is equipped with 2 manual reset limit switches ingas control area. The switches will open and shut off powerto gas valve if a flame rollout or an overheating conditionoccurs in gas control area. DO NOT bypass switches. Correctinadequate combustion air supply, component failure, re-strict...
Page 14 - e. Blower on delay—If burner flame is proven, 45 sec after; . Inducer motor IDM remains energized for
The furnace starts up in either low- or high-gas heat. If furnacestarts up in low-gas heat, control CPU determines low-gasheat on time (from 0 to 16 minutes) which is permitted beforeswitching to high-gas heat.If power is interrupted, stored history is erased, and controlCPU selects low-gas heat for...
Page 22 - Table 12—Speed Selection; Fig. 21—Amp Draw Check With Ammeter; THERMOSTAT SUBBASE; CONTROL TERMINALS
components in R-W/W1 circuit. Accurate amp draw read-ings can be obtained at wires normally connected tothermostat subbase terminals R and W/W1. Fig. 21 illus-trates an easy method of obtaining actual amp draw. Theamp reading should be taken after blower motor has startedand furnace is operating in ...
Page 23 - CHECKLIST
CHECKLIST 1. Put away tools and instruments, and clean up debris.2. Check SW-1 through SW-4 after completing installation to ensure desired settings for thermostat type (SW-1 and SW-2)and blower off delay (SW-3 and SW-4). Refer to Tables 6 and7. 3. Verify manual reset switches have continuity.4. Ens...
Page 24 - SERVICE TRAINING; Packaged Service Training; programs are an excellent way to increase your; Classroom Service Training; callbacks. Course descriptions and schedules are in our catalog.
A94328 SERVICE TRAINING Packaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, including: • Unit Familiarization • Maintenance • Installation Overview • Operating Sequence A large selection of product, theory, and skills programs...